Undefined function or variable 'ocvFastHessianDetector'

i have installed matlab R2016 a on ubuntu 16. there was no vision toolbox in that setup. Addon also not working on it. I downloaded vision toolbox manually and added its path to matlab through command "pathtool". but when i run function extractfeatures. it gives me following error. Undefined function or variable 'ocvFastHessianDetector' Kindly help!

[Devyani Parate]

I have the same problem. Please explain if you got any solution.

[Greg]

Just downloading a toolbox doesn't grant a license to use the features in the toolbox. Try requesting a trial license of the toolbox and see if the function runs. Then you know you'll need to buy the toolbox.